package tech.aistar.day07;

/**
 * 本类用来演示:
 *
 * @author: success
 * @date: 2021/3/16 9:53 上午
 */
public class TestShapeDemo {
    public static void main(String[] args) {
        Shape s = new ShapeSub02Sub();

        System.out.println(s.area());
    }
}
